2SA733K Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.1 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 300 to 600
• Transition Frequency, min: 100 MHz
• Noise Figure, max: 6 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SA733K is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The 2SA733K transistor can have a current gain of 300 to 600. The gain of the 2SA733 will be in the range from 90 to 600, for the 2SA733P it will be in the range from 200 to 400, for the 2SA733Q it will be in the range from 135 to 270, for the 2SA733R it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SA733K might only be marked "A733K".The complementary NPN transistor to the 2SA733K is the 2SC945K.The 2SA812 (SOT-23), 2SA812-M7 (SOT-23), KSA812 (SOT-23) and KSA812-L (SOT-23) is the SMD version of the 2SA733K transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The H733-K, HS733-BL, KSA733L is the TO-92 version of the 2SA733K.You can replace the 2SA733K with the 2SA1025, 2SA1081, 2SA1083, 2SA1084, 2SA1127, 2SA1175, 2SA1175-KF, 2SA1316, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA990, 2SA990F, 2SA991, 2SA991F, 2SB1116, 2SB1116-U, 2SB1116A-U, 2SB726, A733, A733K, H733, H733-K, KSA733C, KSB1116, KSB1116-L, KSB1116S or KSB1116S-L.